Cita APA (7a ed.)

Gustafson, D. F. (1964). Essays in philosophical psychology. Macmillan.

Cita Chicago Style (17a ed.)

Gustafson, Donald F. Essays in Philosophical Psychology. London: Macmillan, 1964.

Cita MLA (9a ed.)

Gustafson, Donald F. Essays in Philosophical Psychology. Macmillan, 1964.